Pile or tuft fabric loom.



J. A. CLARK L J, KIDALKRANALL PILE OR TUPT FABRIC LOOMA. APPLICATION ILED FEB. 24, 1912. 31?@77924-9 Famine@ oma. 2g, 1913.

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3 A CLARK in E a I D ALKBAN IAN PILE 0R TUPT FABRIC LOOMl APPLICATION HLSD 11313.24, 1912.

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Uhl TE 'STATES PATFN errori.

JOHN A. CLARK, OF WORCESTER, MASSACHUSETTS, .AN-D

WEEHKEN HEIGHTS, N-EW JERSEY- STAIES FERSIAN CARPET COMPANY, A

-oLAeK Assreivon To cnoMPToN Massaorzusntr'rs.

.Our inventionrelates-to atuftgfabric loom,

and more particularly llo-improvements in a pile or `tuft fabric .loomffof lthe class shown Letters'ateHt, No.V

l and described in .U. S. l* y 446,402, wherein :isfshow cams' .to move the warps .to`forrr 1 gsheds, .and JIIEGlIiLDlSIIl 150 raise and `lower the tuft' yarn tubes lor needles .to introduce .tuft yarn .into :the'

warps. In said -.p.1.tented '.loom,'. the tuft yarns .for lforming'.thepi-le are inserted into the warps by .a series of needles', each of which carries ,a tuft '.yarn, .which is interwoven intothc fabric, and then cutto -form V the pile. l

The yobject of our invention is to provide .a new and improved .method -of ,making `woven -pile 4fabrics .of `'the IPersian -1vug.type, the fabric having .Persian knots, :which are .80 formed mechanically` .by ,automatic .mechanism, and ,prefcrablynna loom. ofthe class above referred to.

In our iinproveln'ents, .to be hereinafter described, the Persian lmet, so-termed, .in

the fabric, -i-s formed -by inserting the vpile yarn, and passing the. pile yarn twice be* tween `the 'ground warp threads, lwhich threads .are movedsidewise or transversely of-eachfotherbymeansof a combsplaeed be- .4D tween the layand the Afell .of.tlie.clot h and moved iby cams, yand crossed and uuciossed alternately, .relatively to the movement ot' the Apile yarn, which is Aput. into the fabric, with its endsprojectingfbelowthe surface of the fabric, and before the tubes/or needles carrying the tuft .yarns, .are withdrawn yfrom the fabric, :the tuft yarns are-cut-by `a rotating Icutter drawn ,transversely across the -widthvofthe fabric, and .preferably lupon thelowerside of the fabric.

Specification of Letters =Patent. Application filled February 24, 1912.

'CORPORATION 0F NEW YORK, AND SAID a KnowLEs Leoni WORKS, A CORPORATION or PILE 0R TUFT FABRIC LOOM.

Patentedct. 28, 1913. serial No. 679,621.

Our invention consists ,in certain novel features of construction of' our improvements as will be hereinafter fully'described.

Te have only detached portion of a tuft pile fabric loom ofthe class referred to, with -our improvements combined therewith, suiiicient to enable those skilled in the art to understand the construction and operation thereof.

.Referring to the drawings: Figure l is a shown in the drawings a front view of 'a tuft .fabric loom, and also a section, ,on :line l, l, Fig. 2, looking in the direction -of arrow a, saine ligure, .showing our improvements detached. Fig. 2 is a sidelorend viewof a detached portion ofthe loom, and .of .our improvements, looking in the direction of arrow .6, Fig. 1. Fig. 3 is, on an .enlarged scale, a section. on hue 3, 3,

Fig. 1,.-looking in the direction of arrow-c,

same lligure. Fig. i-corresponds to Fig. 3,'

but shows .some ofthe parts shown in Fig. 3 in .a different position. gramatic View, showing the shed for1ned and .the .combs moved upwardly above the lower wa'1p.`^Fig. 6 shows .a Atop or plan View of the parts shown .in F ig. in ,the direction of arrow d, same figure; the tuft .yarn -needle and -tuft yarn, shown in Fig. 5, are not shown in this figure. Fig. 7 corresponds to Figo, butshowsthe combs .moved s idewise, for a distance of two dents of thereed, to cross the lower warps. Fig. 8 corresponds to Fig. raised and extending above theupper warps. 'Fig 9 is a plan view oftheparts shown in Fig. 8,` looking.in the direction of arrow c, same ligure, and .showing the combs moved halfway back, in the direction indicated by arrow f; the tuft yarn needle, and tuft yarn, shownin Fig. 8, arenot shown in this ligure. Fig. l0 corresponds to Fig. 8, but shows the combs parted, `to allow a tuft yarn needle, carrying a tuft yarn, to-be lowered between the combs, and between the crossed warps. Fig. l1 is aplan viewof the parts shown-in Fig. l0, looking in the direction -of arrowg7 .same ligure. Fig. l2 corresponds to F ig. 10, but showsthe combs -'lowered and with'- drawn `.from the warps. Fig. 13 corresponds to Fig. 12,' but shows the tuftyarn needle Fig. 5 is a dial' 5, looking 5, but shows the combs f I or tuft yarn has been 1n the accompanying drawings, 1 1s theadapted inserted a second time, to finish the loop of the tuft yarn, and, Fig. 14 shows the tinished loop of the pile fabric, after the pile cut or severed.

loom side or end frame, 2 is a transverse girt, 3, Fig. 2, the breast beamyover which the fabric 4 passes to the take-up roll 5. ln Fig. 2, 4 showsthe piles or tufts on the lower side of the fabric, which are formed by inserting the tuft yarns 6, through the dropping of the tuft yarn tubes or needles 7. The lay S is provided with areed 9, comprising dents through which the upper warps 10 and the lower warps 11 are passe from warp beams at the rear of the loom, not shown. The warps 10 and 11 are passed over whip rolls 12 and 13, see li`ig.,2, which are `mounted in levers 14 and 15, having their hubs secured on the transverse shafts 16 and 17. Cam levers 18 and 19 have their hubs 18 and 19, respectively, fast on the ends of the shafts 16 and 17. The cam lever 18 carries a roll 20, and the cam lever 19 carries a rpll 21, which rolls are respectively adapted to engage, in this instance, the peripheries of the cams 22 and 23, which in this instance are fast on the bottom shaft 24.

All of the above mentioned parts may be of the usual and well known construction.

We will now describe our improvements, which relate particularly to the comb inotion or warp parting device, to form the loops or knots of the pile or tuft yarns, which are inserted between the warps. rlChe comb motion or warp part-ing device consistsin this instance of two lifter bars 25 and 26 below the warps, see Fig. 2, which are respectively provided at their upper edges, with bars 27 and 28, extending upwardly therefrom, and having a series of short teeth or dents 27 and 2S thereon, see Fig. 1. The teeth or dents 27 and 28 correspond in location with the dents of the reed 9, and are to enter into or between the warps l() and 11, when the bars 25 and 26 are raised, as shown in Fig. 2. The bar 25 is suitably secured to the upper ends of the arms or levers 29, which have their hubs 29 fast on a rock shaft 30 see Fig. 1. Two of the levers 29, asshown in Fig. 1, have in this instance downwardly extending arms 29, which have adjustably secured to their lower ends studs 31, see Figs. Sand 4, to which are pivotally connected the rod heads 32, on the adjustable connecting rods The other ends of the rods 33 are provided with rod heads 34, which are pivotally connected ,to one end of angle levers 35, hubs 35 of which are each loosely mounted on a stud 36 on a stand 37, which is secured to the girt 2. `The other arms of the angle -levers 35 are each provided with a roll, which travels on the periphery of cams 38, see Fig. 1,v which cams are fast on the botarms 29 to be moved the rmt/,ear

tom shaft 24. f1 helically coiled contraction spring 39, see lig. 1, which is attached at one end to a'lug 401 on a stand 40, and at its other end to an arm 41, which has its hub 41 secured on the rock shaft 30, the bar 25 on arms 29 in engagement with the bar 26.lv

rthrough the operation of the canisSon the bottom shaft 24, and. the angle levers 35, and intermediate connections to the arms 29 on the shaftBO, a rocking motion is communicated to said shaft 30 at predetermined times, which causes the bar 25 on away from the bar 26, as shown in Fig. 4. rlhe rock shaft 30 is in this instancev loosely mounted in sleeves or hubs 42, which have extending upwardly therefrom the arms 42, ywhich are adapted 'to carry the bar 26 and the comb 28 thereon. The hubs 42' are provided with journals 42, see Fig. 2, which are pivotally mounted on the yoke shaped ends ofthe upwardly eX- tending swinging arms 43. 'l he lower ends of said arms 43 are pivoted on studs 44 on the yoke shaped heads, 45 which in this instance are secured to the upper ends of downwardly extending guide rods 46, sce Fig. 1. The guide rods 46 are suitably `held and'loosely guidcdin the bosses 47 on the stands 47, which are secured to the braccs48 of the loom. The heads 45 are i-n this instance provided on one side thereof with lugs 45', see Fig. 1, which carry studs 49, to which are pivotally connected the rod heads .50 on the upper ends of adjustable connectf ing rods 51. The lower ends of the rodsl are provided with rod heads 52, which are pivotally connected to one end of levers 53, see Fig. 2. Each of the levers has its hub 53 loosely mounted on the stud 36 on the stand 37, see Fig. 1. rthe other arms of the levers 53 carry rolls, see 2, which rolls are adapted to travel on the periphery of cams fast on the bottom shaft 24. The two cams 54 operate the two levers 53, to cause the combs 27 and 28 to be raised and lowered at predetermined times. The hub 42, of one of the arm-s is,

shown at the right in Fig. 1, has extending downwardly therefrom a lug 4 2, to which is pivotally connectedthe rod head 55 on one end of the connecting rod 56. ril`he other end of theI connectingrod 56 is provided with a rod head 57, which is adjustably connected', through a slotS in one end of an angle lever 58, to said. angle lever 5S. The angle lever 58 has its hub 5S loosely` mounted on a stud 59 on a stand 60, sceilfig. 2, which-is secured to the brace rthe other arm of the angle lever 56 has pivotally connected thereto a rod head 61, see ltig. 1. on the upper end of the vertically extending rod 62. 'the lower end of said rod 62 is provided with a rod head l63, which is pivotally connected to one arm of an angle lever acts to hold G4, see Fig. 2. The hub 64 of the angle lever 64 is loosely mounted on a stud 65, secured by a set screw 66' in a boss 66 on a stand 66, which is secured to the girt 2. The other arm of the angle lever 64has a roll 67 thereon, see F ig. 2, which travels in this instance on the periphery of a cam 68, which is fast on the bottom shaft 24.

The operation 'of the cam 6 8 and the angle lever 64C, through intermediate connections to the hub 42 on the rocking shaft 30, communicates asliding motion to said shaft 30, and the combs 27 and 28 thereon, in -either direction, to ross thewarps7 as will behereinafter described.

A helically coiled contraction spring 69 has one end connected to a flug 58 on the warps 10, as shown in Fig. 6, are movedlso .said combs, and the ered by the shedding upright arm of the angle lever 58, and its other end to a stationary part of the loom, not shown, and acts to hold one arm of the angle lever 64,

.in contact with the periphery of the cam 68.'

The operation of our improved mecha nism in connection withthe drawings and the above description, stood by those skilled 1n the`art, and the method of weaving the pile fabric ofthe Persian rug type, is briefly as follows: As shown in Fig, 11, (warp 11 is shaded to distinguish it from warp 10), have formed the shed, and the two combs 27 and 28 are raised to cause .the teeth or dents .27 and 28A thereon t beinserted betweenjthe lowerwarp threads 11,

which in this instance'zwill occupy the position shown in Fig. 6.

The combs 27 and 28, through the mechanisms above described, will be moved sidewise, and in the direction indicated by the arrow in Fig. 7, and the lower warps 11, which are normally parallel to the upper with the combs 27 and 28 for the distaneeof two dents of the ree-d 9, to cross the warps 10, as shown in F ig.- 7. 'At the same time the whip roll 13, see cause the lower warps 11'to be Slackened, and allow of theside On the next operation, the combs 27 and 28 are raised higher, through the mechanism above described for raising and lowering upper warps 10 are lowmechanism, as shown in Fig. 8,' in order -to enter between the dents or teeth 27 and 28 on thecombs 27 and 28l `The. combs 27 and 28 are now moved sidewise, by mechanism above de.

reed, and to occupy the crossed positions shown in F ig. 9. At the same time the whip roll 12, see Fig. 2, is operated to slacken the upper Warps 10. While in this position the the roll 6.7 on

will be readily under- 5, two sets .of warps 1 0 and- Fig. 2, is operated to f movement referred to.l

the entrance of the tuft yarn tubes or needles 7,- carrying the tuft yarns 6, as shown in .F ig. 10, and the passage of the tuft yarn 6 between thecrossed warps 10 and 11. The combs ,27 and 28 are now lowered, causing the dents or teeth 27 and 28 to move out vfrom between the warps, allowing the warps l0 andll to return to their normal parallel position, the whip rollsV 12 and 13, see Fig.

2, being operated to tighten-the warp threads l0 and 1,.and the tuft yarn tubes or needles 7-are then ra1sed,.and Athe pile or tuft yarns 6, which are left between the warps 10 and 11, y.will be crossed sldewise, as shown at 6 in Fig. 14. Thetuft `yarn tubes or needles 7 carrying'thetuft yarns 6 are moved downwardly a second time between the warps 10 and 11, as shown'in Fig. 13, to iin'ish the knot, as shown in Fig. M, Iand a cutter, not shown, is drawn across ,the fabric, on the vunderside thereof, to cut orsever at 6, see

Fig 13. the Apile yarns 6 extending fromthe lower end of the tubes cr needles 7 and the tubes lor needles 7 are raised and withdrawn from between the'warps, and `filling threads, not shown, are inserted in theusual way to bind the pile yarn knots.

. The .operation above described is performed for each transverse-row of pile vyarn tufts in the fabric.

It will be understood that the details of construction of our -improvementsmay. be varied if desi-red. l lVe have shown 1n the drawings'and de,-

scribed herein one form of means-oi* mecha nism for crossing some of the. wa-rpthread relative to the other warp threads,'and. forming openings with parallel sides 'between the crossed warp threads for the- .insert-ion of the tuft yarn needles, but wedonot limit ourselves to the particular means or'mechaf nism referred to as any other suitablemeans. or mechanism maybe employed for crossing relative to the some of the warp threads other warp threads, and forming. openings.

with parallel sides between the crossed warp 'threads for the insertion of the tuft yarn needles or tubes.

Having thus described our invention, what we claim as new and desire to secure byLetters Patent is :n j

1. In a loom for Weaving textile fabrics, warpthreadS, a warp parting device, to engage tlie warp threads bet-Ween the reedand the fell of the fabric, and means tooperate said warp part-ing device, to cross some of roo ' threads,

the warp threads relative to the other warp threads, and form openings with parallel sides between the crossed warp threads, for the insertion of the tuft yarn tubes or needles.

2. In a loom for` weaving textile fabrics, warp threads, means, including a comb having teeth, to engage the warp threads between the reed and the fell of the fabric, and means to operate said comb, to cross some of the warp threads relative to the other warp threads, and form openings with parallel sidesbetween the crossed warp threads, for the insertion of the tuft yarn tubes or needles.

3. In a loom for weaving tufted fabrics, warp threads means, including two combs, having teeth to engage the warp threads be* tween the reed and the fell of the fabric, and movable relative to each other, and means for operating said combs, to cross some of the warp threads relative to the other warp and form openings with parallel sides between the crossed warp threads, for the insertion of the tuft yarn tubes or needles.

Ll. ln aloom for weaving tufted fabrics, the combination with the warp threads, of a warp parting device, to vengage some of the warp threads between the reed and the fell of. the fabric, and means for operating said warp parting device, to cross said warp threads relative to the otherwarp threads, and held the crossed form openings with the warp threads, for the tuft yarn tubes or needles.

5. ln a loom for weaving tufted fabrics, warp threads, means, including two combs having t cth, to engage the 'tween tie reed and the fell of the fabric, said combs movable longitudinallr and movable lateralljv, to cross some of the warp threads relative to theother warp threads, and form openings with parallel sides between the crossed warp threads, for the in sertion of the tutt yarn tubes or needles, and means for operatinff said combs.

G. ln a loom for weaving tufted fabrics,

parallel sides between insertion of the the combination with the warp threads, of

two combs having teeth to engage said warp threads, between the reed and the fell ot the fabric, and'means to more said combs to move some of the warp threads to one side of their normal position, and move somo of the warp threads in an opposite (lireriei. to one side of their nornml position, a means to separate the combs, to provide openings through the wraps between the warp threads apart, to

warp threads bef l l l, lVit-nesses neme/i1 combs, for the insertion of the tuft yarn tubes orneedles.

T. ln a loom for weaving tufted fabrics, the combination ,with the warp threads, of two combs having teeth to engage. said warp threads, between the reed and the fell of the fabric, and means more one half the warps for a distance ol' two dents of the reed, to one side of their normal position, and to move the other half of the warp threads in the opposite directtion for the distance of one dent of the reed, to one side of their normal position, and means te separate the combs, to provide' openings through the warps between the combs, for the insertion of the tuft yarn tubes or needles.

S. ln a loom for weaving tufted fabrics, the combination with the warp threads, and means for slackening and tightening said warp threads at predetermined times, of two" combs having teeth to engage said warp fabric, and means to move said combs, to move some of the warp threads to one side of their normal position, and move some of the warp threads in an opposite direction to one side of their normal position, and means to separato the combs to provide openings through the warps between the combs, for the insertion of tutt yarn tubes or needles.

Q. ln a loom for weaving tufted fabrics, the combination with the warp threads, of two combs having teeth to engage said warp threads, between the reed and fabric, means to raise the combs to engage the lower warps in a shed, means to move the combs cndwise after the lower warps are engaged,andI` means to slaeken said warps during` the infn/ement of said combs, means to move the combs higher to engage the upper warp threads, and means to move the combs in an opposite direction to cross the warp threads, and means to tighten the first mentioned warp threads, slacken the second mentioned warp threads, means to separate' or move the combs apart, to provide openings in'the warps between the combs, for the insertion of the tuft yarn tubes or needles, and means to lower the combs out of engagement with the warps, to allow them to return to their norma-l position, and means for tightening the warps.

. JOHN A. CLARK.

JAMES K. Di-XLKRANIAN.

n. new, J. ll. SYME.

to move said combs tok threads, between the'recd and the l' ell of the" the fell of the .v

and means tol 

